Car-wheel.



G.T.SGHOEN. OAR WHEEL.

APPLICATION FILED JUNE 25,1 906.

PATENTED OCT. 30, 1906.

ATE

Su sm, QFMOYLAN, PENNSYLVANIA? I No. 8 4,761. 4

To all whim lit may concernq citizen of theUnited States, residing at" Beit knownthat 1; CHARLES T. SeHo iv a Mo lan, in the county of Delaware and State exact descrip tion.1

In" king Wheels from blanks ofwrought} metal the operations of shaping the blank for the [subsequent operations of shaping-the wheel'have been costly in time and labor, and

d where'the blank hasbeen sheared in. order. to

make it circular and ,of approximate wheel size there has been considerable waste of fmetal. In thepresent-inv'ention these ex penses arelipracticall "eliminated, since. the f angular blank cut ro m rolled (preferably steel) stock is either of a size to be dropped intothe pressingrdies or of such size as to require only the nipping off of" its corners to permit it to be dro ped in such, dies, and then while lastic it is subjected to die-pressure onits at sides, whereby it is caused to flow out and fill up the matrix. In this way a wheel. may be produced with .or without a flange or a blank, may be produced re= quiring toheidished or coned, or to be rolled, or to be both rolledand dished or-vconed in Y ,ing the invention, in

.order to complete its finish. U

In the accompanyin drawin s,' illustrat-' e" severa figure's of which like parts are similarl desl ated Figure 1 shows'a suitable blan in'e ge andlan views.'- "Fig.1 2- shows in-pl'an view, full ines the blank with its four corners nipped" and indicating by dotted lines a die-matrix.

,' Fig.7 is an elevation, of the car-Wheel of Fig; '5; punched and ready for use or such other finishing as may be required to fit it for any" Fig. 3 is a cross-section of the first-operation dies with their roduct between; Flg. 4 is a plan view ;of; t e productof the first-operation. dies.,.Fig. -5 is a cross-section of the, second-operation dies with their prodnot between. Fig.6 is a cross-section, and

special use. 'Flg. 8 is a .cross-section-of a pair of dies for dishing or-ac oning the wheel with their product between'. Fig. 9- is a crosssectionofthe product which ma be equally well represented in elevation by ig: 7

"stock cutato size an 1 is of selected rolled The blank lofFi g free of imperfections.

Specification of Letters Patent. Application mam a s. 1903s. sefia'1m.'a2s',4o2.

ennsylva nia,: have invented a certain: new and useful Improvement in Oar-Wheels, @Of Which'fthe following is i i frill clear, and;

; in e such; a state ofplasticity" as-to 7 flow. under y'hub 4,"W'ebi5,- and rim' 6.. ",llhe femaled-ie has thic esj's of the blank; f'an and it also ha'sthe central-projection: 9, be

mentary hub is forms by the dies 13 and 14, Fig.5, wherein'thejam .nular projections 15 16- are flat'and serve to,

. are rovided to form a flanged i;

there ma be used after the dies-o Fig'."5-'o'r.

projection 22Jof a I ro'file to form and'dish or cone thefweb an cavit product of the dies (if-Fig.6, .or the opera-..

used separately may be combined in the pair of dies of Fig. 8,"

blank is subjected to ressure sufficient to pletely into a perfectly rounde and;,symmetrical wheel,- which is afterward punched thejpressu're of the diesgj It may have its j cernerso'r angles'nipped offas. seen in'Fig. .2, e or if the-female die .merhberi's'large enough; this nipping of the corners maybe v omitted. .ZThe blank-1s dropped; into the fernale die 2f -(shown.i'n:Fi' .53. and represented;bythedotel'j ll tedcirc'le in. ig. 2) 2a'ndfsubject ed to-pressuse' by thei male' die. 3, the result that the"- metal is displaced .td .form} the rudimentary;

I the wheel isi tobejdished or coned; then the 'hub cavity 23. The a.. complemental. male die- '2 4 has the flat'por fl'i tion 25, web forming projection 26,-and-hubd 27. xAs ind1cated,' this pair of 'diesfl rnay e used fora third-operation upon the g 9-5 tions performed by thetwo pairs of dies when to obtain the axle-hole and may be 01511 01? further .treated by rolling, machining,

I-tii s preferably of steelf fandis treated hot or" projections and forjcedv put-radian by the; .sloping projections; .The producto the dies, Fig. '3, is then transferred to and acted'upo'n'p flatten out the'rweb; and-cavitiesyl'l and .18V

inplace of them the pair of diesishownfin .Fig. 8, wherein.1 9 is a female v die having'the rim-high wall '20, rim-cavity 21, annular-t In operating medias,- Fig. .501 FigJs, the; 1

cause the'metal to flow eely' andassume the contour of. the die-faces, fillin 'out'..-comv-."

ing, or other procedure in accordance with the requirements of the user. fact, the wheelas it comes from' the dies of Fig. 5 or from the dies of Fig. 8 with its axlehole punched is finished. f

If desired, the projections for forming the web may be sloped so as to make the web thinner next to the rim.

It will be observed that the die-pressure is brought directly upon the flat sides of the blank in its course of treatment, and the rounding of the product is effected by displacement or flowing of the metal by such pressure within the preformed cavities of the dies.

By the method described it is possible to avoid the expense of rounding the blank by forging, and it is also possible toavoid the Waste of metal by shearing it round. The wheel or blank isperfectly rounded. in the dies by the pressure to which it is-subjec ted;

The process herein described forms the In point of I subject of a separate ease of with, Serial No. 323,401.

What I claim is 1. A \vrmlglltwvlieel having a rim a web and a punched hub produced from a square slab of wrought metal by means ol" die-pressure applied to the llat sides ol the slab while in a plastic state, the entire rim, web and hub evidencing the die-forging.

2. A die-pressed wroughtmetal wheel having an integral rim, web and hub l'ormed solely by pressure in dies.

3. A die-pressed wrought-metal ear-wheel, having an intergal rim, web and hub formed solely by pressure in dies and simultaneously dished or eoned.

In testimony whereof I have hereunto set my hand this 22d day of June, A. l). 1906.

CHARLES 'l. SCIIOEN.

even date here- Witnesses:

lh'l.'l JAoKsoN, .HARRY M. KURTZ. 

